| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | No time was spent | 44 |
29.3%
|
| 3 | 2 |
1.3%
|
|
| 5 | 4 |
2.7%
|
|
| 7 | 1 |
0.7%
|
|
| 8 | 1 |
0.7%
|
|
| 10 | 18 |
12%
|
|
| 14 | 1 |
0.7%
|
|
| 15 | 1 |
0.7%
|
|
| 16 | 1 |
0.7%
|
|
| 20 | 14 |
9.3%
|
|
| 25 | 1 |
0.7%
|
|
| 30 | 5 |
3.3%
|
|
| 35 | 1 |
0.7%
|
|
| 40 | 13 |
8.7%
|
|
| 50 | 13 |
8.7%
|
|
| 60 | 13 |
8.7%
|
|
| 80 | 5 |
3.3%
|
|
| 90 | 1 |
0.7%
|
|
| 100 | 11 |
7.3%
|